Python Interview Questions
1 .
How is memory managed in Python?
Python memory is managed by Python private heap space. All Python objects and data structures are located in a private heap. The programmer does not have an access to this private heap and interpreter takes care of this Python private heap. 
The allocation of Python heap space for Python objects is done by Python memory manager. The core API gives access to some tools for the programmer to code.
Python also have an inbuilt garbage collector, which recycle all the unused memory and frees the memory and makes it available to the heap space.
2 .
What is map function in Python?
map function executes the function given as the first argument on all the elements of the iterable given as the second argument. If the function given takes in more than 1 arguments, then many iterables are given. #Follow the link to know more similar functions.
3 .
How to display the contents of text file in reverse order?
1 . convert the given file into a list.
2 . reverse the list by using reversed()
Eg :  for line in reversed(list(open(“file-name”,”r”))): 
4 .
Python is object oriented? what is object oriented programming?
Yes. Python is Object Oriented Programming language. OOP is the programming paradigm based on classes and instances of those classes called objects. The features of OOP are:
Encapsulation, Data Abstraction, Inheritance, Polymorphism.
5 .
What is a Class? How do you create it in Python?
A class is a blue print/ template of code /collection of objects that has same set of attributes and behaviour. To create a class use the keyword class followed by class name beginning with an uppercase letter. For example, a person belongs to class called Person class and can have the attributes (say first-name and last-name) and behaviours / methods (say showFullName()). A Person class can be defined as:

Syntax : 
class Person():
def inputName(self,fname,lname): self.fname=fname self.lastname=lastname
def showFullName() (self):
print(self.fname+" "+self.lname)person1 = Person() #object instantiation person1.inputName("Ratan","Tata") #calling a method inputName person1. showFullName() #calling a method showFullName()

Note : whenever you define a method inside a class, the first argument to the method must be self (where self – is a pointer to the class instance).
6 .
Differentiate between .py and .pyc files?
Both .py and .pyc files holds the byte code. “.pyc” is a compiled version of Python file. This file is automatically generated by Python to improve performance. The .pyc file is having byte code which is platform independent and can be executed on any operating system that supports .pyc format.
7 .
What is the interpreter in Python?
An interpreter is a program that reads and executes code. This includes source code, pre-compiled code, and scripts. Common interpreters include Perl, Python, and Ruby interpreters, which execute Perl, Python, and Ruby code respectively
8 .
Mention what the Django templates consists of.
The template is a simple text file.  It can create any text-based format like XML, CSV, HTML, etc.  A template contains variables that get replaced with values when the template is evaluated and tags (% tag %) that controls the logic of the template.
Ajax Interview Questions
9 .
What is pep 8?
PEP stands for Python Enhancement Proposal. It is a set of rules that specify how to format Python code for maximum readability.
10 .
What is namespace in Python?
A namespace is a naming system used to make sure that names are unique to avoid naming conflicts.